CN104722519A - Automatic cleaning system for photovoltaic modules - Google Patents
Automatic cleaning system for photovoltaic modules Download PDFInfo
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- CN104722519A CN104722519A CN201310724490.5A CN201310724490A CN104722519A CN 104722519 A CN104722519 A CN 104722519A CN 201310724490 A CN201310724490 A CN 201310724490A CN 104722519 A CN104722519 A CN 104722519A
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- photovoltaic module
- cleaning
- processor
- monitoring device
- temperature data
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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Abstract
The invention discloses an automatic cleaning system for photovoltaic modules. The automatic cleaning system for the photovoltaic modules comprises an environment monitoring device, a processor and a cleaning device. The environment monitoring device is used for acquiring environment parameters of the photovoltaic modules; the processor is connected with the environment monitoring device and used for generating cleaning control signals according to the environment parameters; the cleaning device is connected with the processor and used for cleaning the photovoltaic modules under control of the cleaning control signals. By the automatic cleaning system for the photovoltaic modules, the problem of low power generation efficiency of the photovoltaic modules due to delay and unsafety in manual cleaning of the photovoltaic modules in the prior art is solved, and timeliness and accuracy in cleaning of the photovoltaic modules are realized to guarantee power generation efficiency and service lives of the photovoltaic modules.
Description
Technical field
The present invention relates to photovoltaic module control field, in particular to a kind of photovoltaic module automatic cleaning system.
Background technology
Photovoltaic module is outdoor installation, of long duration, and a lot of fouling product can be accumulated in photovoltaic module surface, badly influences the photoelectric transformation efficiency of photovoltaic module.It affects principle and mainly contains following two aspects:
(1) during uniform dust granules attachment, the transmissivity of light will be had influence on when the fouling product on photovoltaic module surface is tiny, and then have influence on the solar radiation quantity that photovoltaic module can receive.
(2) when the fouling product on photovoltaic module surface is the partial occlusion things such as leaf, earth, birds droppings, shade can be formed on photovoltaic module surface, so just be partially formed hot spot effect at photovoltaic module, and then reduce the generating efficiency of photovoltaic module, even may burn assembly.
In a string photovoltaic module series circuit, block once there be a block assembly to be subject to fouling product, its effect will badly influence the generated energy of whole optical crosstalk photovoltaic assembly; Meanwhile, research finds, the photoelectric transformation efficiency of photovoltaic module is subject to the impact of temperature, and the photoelectric transformation efficiency of photovoltaic module reaches best when a certain temperature, the too high meeting of temperature has influence on the photoelectric transformation efficiency of photovoltaic module.
The present stage cleaning of photovoltaic module is all manual cleaning substantially, and manual cleaning has following shortcoming:
(1) the construction area of photovoltaic field is general all very large, and manual cleaning is by manpower and materials a large amount of for waste;
(2) used during manual cleaning instrument comprises human factor, may cause the damage of photovoltaic module, affects the normal operation in whole power station;
(3) may be improper because of cleaning during manual cleaning, cause electric leakage accident, there is serious potential safety hazard.
For manual cleaning photovoltaic module in prior art not in time, dangerous, thus cause the problem that the generating efficiency of photovoltaic module is low, not yet propose effective solution at present.
Summary of the invention
For manual cleaning photovoltaic module in correlation technique not in time, dangerous, thus cause the problem that the generating efficiency of photovoltaic module is low, at present effective solution is not yet proposed, for this reason, main purpose of the present invention is to provide a kind of photovoltaic module automatic cleaning system, to solve the problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of photovoltaic module automatic cleaning system, this photovoltaic module automatic cleaning system comprises: environment monitoring device, for obtaining the ambient parameter of photovoltaic module; Processor, is connected with environment monitoring device, generates cleaning control signal for environmentally parameter; Cleaning device, is connected with processor, under controlling at cleaning control signal, clean photovoltaic module.
Further, environment monitoring device comprises: air velocity transducer, is connected with processor, for obtaining the air speed data of photovoltaic module working environment; Wherein, ambient parameter comprises air speed data.
Further, environment monitoring device also comprises: environment humidity sensor, is connected with processor, and for obtaining ambient temperature data and the ambient humidity data of photovoltaic module working environment, wherein, ambient parameter also comprises ambient temperature data and ambient humidity data.
Further, processor comprises: the first calculator, is connected with environment monitoring device, calculates fouling product accumulated value for carrying out fouling product accumulation to ambient parameter; First comparator, is connected with the first calculator, for when fouling product accumulated value is greater than preset cumulative value, generates the cleaning control signal of cleaning fouling product.
Further, environment monitoring device also comprises: assembly temperature sensor, is connected between processor and photovoltaic module, for obtaining the assembly temperature data of photovoltaic module; Optical sensor, is connected with processor, and for obtaining the photometric data of photovoltaic module working environment, wherein, ambient parameter also comprises assembly temperature data and photometric data.
Further, processor comprises: the second calculator, is connected with environment monitoring device, calculates for carrying out photovoltaic module generating efficiency to assembly temperature data, photometric data and ambient temperature data the maximum temperature data determining photovoltaic module maximum generation efficiency; Second comparator, be connected with environment monitoring device and the second calculator respectively, for when the difference of assembly temperature data and maximum temperature data is greater than preset difference value, generate cleaning cooling instruction, also for when the difference of assembly temperature data and maximum temperature data is not more than preset difference value, generate and stop cooling instruction; Wherein, cleaning control signal comprises cleaning cooling instruction and stops cooling instruction.
Further, cleaning device also comprises: water supply installation, is connected with processor, supplies water under controlling at cleaning control signal; Spray equipment, is connected with water supply installation, the Water spray photovoltaic module provided for using water supply installation.
Further, processor also comprises: spray rate controller, is connected with spray equipment, for controlling the spray rate of spray equipment according to cleaning control signal.
Further, photovoltaic module automatic cleaning system comprises: communication manager, is connected between environment monitoring device and processor, for ambient parameter is forwarded to processor.
Further, communication manager is connected with environment monitoring device by RS485 bus.
Environment monitoring device in photovoltaic module automatic cleaning system of the present invention can be arranged on photovoltaic field, photovoltaic module automatic cleaning system can according to the monitoring of the environment to photovoltaic module, processor environmentally parameter can carry out analytical calculation, generate cleaning control signal exactly, then cleaning device cleaning photovoltaic module is controlled in real time, adopt cleaning device cleaning not to be manual cleaning in the above-described embodiments, save a large amount of manpower and materials, thus save cleaning cost; Use cleaning device can not be subject to the impact of human factor, cleaning device can not cause the damage of photovoltaic module, thus can ensure the normal operation of photovoltaic module; In addition, cleaning device cleans photovoltaic module under cleaning control signal controls not to be existed because cleaning is improper, causes the problem of electric leakage accident, makes photovoltaic module can safe operation; The more important thing is, processor can environmentally parameter judge whether to need to clean photovoltaic module, thus the shelter on photovoltaic module surface can be removed timely and accurately, enable photovoltaic module receive solar irradiation to greatest extent, ensure generating efficiency and the life-span of photovoltaic module.Adopt the present invention, to solve in prior art manual cleaning photovoltaic module not in time, dangerous, thus cause the problem that the generating efficiency of photovoltaic module is low, achieve and promptly and accurately clean photovoltaic module, ensure the generating efficiency of photovoltaic module and the effect in life-span.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the photovoltaic module automatic cleaning system according to the embodiment of the present invention; And
Fig. 2 is the structural representation of a kind of optional photovoltaic module automatic cleaning system according to the embodiment of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the structural representation of the photovoltaic module automatic cleaning system according to the embodiment of the present invention.As shown in Figure 1, this system can comprise: environment monitoring device 10, for obtaining the ambient parameter of photovoltaic module; Processor 30, is connected with environment monitoring device, generates cleaning control signal for environmentally parameter; Cleaning device 50, is connected with processor 30, under controlling at cleaning control signal, clean photovoltaic module.
Environment monitoring device in photovoltaic module automatic cleaning system of the present invention can be arranged on photovoltaic field, photovoltaic module automatic cleaning system can according to the monitoring of the environment to photovoltaic module, processor environmentally parameter can carry out analytical calculation, generate cleaning control signal exactly, then cleaning device cleaning photovoltaic module is controlled in real time, adopt cleaning device cleaning not to be manual cleaning in the above-described embodiments, save a large amount of manpower and materials, thus save cleaning cost; Use cleaning device can not be subject to the impact of human factor, cleaning device can not cause the damage of photovoltaic module, thus can ensure the normal operation of photovoltaic module; In addition, cleaning device cleans photovoltaic module under cleaning control signal controls not to be existed because cleaning is improper, causes the problem of electric leakage accident, makes photovoltaic module can safe operation; The more important thing is, processor can environmentally parameter judge whether to need to clean photovoltaic module, thus the shelter on photovoltaic module surface can be removed timely and accurately, enable photovoltaic module receive solar irradiation to greatest extent, ensure generating efficiency and the life-span of photovoltaic module.Adopt the present invention, to solve in prior art manual cleaning photovoltaic module not in time, dangerous, thus cause the problem that the generating efficiency of photovoltaic module is low, achieve and promptly and accurately clean photovoltaic module, ensure the generating efficiency of photovoltaic module and the effect in life-span.
As shown in Figure 2, in photovoltaic module automatic cleaning system of the present invention, environment monitoring device can comprise: air velocity transducer 11, is connected with processor, for obtaining the air speed data of photovoltaic module working environment; Wherein, ambient parameter comprises air speed data.
Particularly, the environment monitoring device shown in Fig. 2 also comprises parameter measuring apparatus 15, and parameter measuring apparatus is used for the data that collected by the sensor in environment monitoring device to carry out quantification treatment and obtain the data that user can intuitively recognize.
In the above embodiment of the present invention, environment monitoring device also comprises: environment humidity sensor 12, is connected with processor 30, for obtaining ambient temperature data and the ambient humidity data of photovoltaic module working environment, wherein, ambient parameter also comprises ambient temperature data and ambient humidity data.As shown in Figure 2, environment humidity sensor comprises environment temperature sensor
Particularly, air velocity transducer 11, environment humidity sensor 12, assembly temperature sensor 13 and optical sensor 14 are connected with processor 30 with communication manager 60 by parameter measuring apparatus 15 in fig. 2.
Preferably, each photovoltaic plant can have corresponding photovoltaic microgrid monitoring system and environment monitor, the environment monitoring device of photovoltaic module automatic cleaning system can be integrated in the photovoltaic microgrid monitoring system that photovoltaic plant itself has, and the data that the environment monitor that can directly use photovoltaic plant itself to have gathers.
This photovoltaic module automatic cleaning system depends on photovoltaic plant existing photovoltaic microgrid monitoring system, without the need to purchasing monitoring equipment in addition, thus can save the cost of photovoltaic module automatic cleaning system.
According to the abovementioned embodiments of the present invention, processor can comprise: the first calculator, is connected with environment monitoring device, calculates fouling product accumulated value for carrying out fouling product accumulation to ambient parameter; First comparator, is connected with the first calculator, for when fouling product accumulated value is greater than preset cumulative value, generates the cleaning control signal of cleaning fouling product.
Particularly, processor, to the comprehensive analysis of ambient temperature data, ambient humidity data, air speed data, is determined that photovoltaic module needs the time period of carrying out cleaning, is generated cleaning control signal.
More specifically, first calculator use fouling product accumulation statistic algorithm determine various environmental factor accumulation lower the fouling product accumulated value that can produce, the first comparator according to this fouling product accumulated value in good time provide automatic clear instruction (the cleaning control signal namely in above-described embodiment).Wherein, preset cumulative value can be kept in the first comparator in advance, and the first comparator, when fouling product accumulated value is greater than preset cumulative value, generates the cleaning control signal of cleaning fouling product, to control cleaning device cleaning photovoltaic module.
In the above-described embodiments, the first calculator from the ambient parameter table preset, can read the fouling product aggregate-value corresponding with ambient parameter.
In another embodiment of the present invention, first calculator can the relation of environmentally parameter and time, the statistic algorithm accumulated by fouling product obtains the scavenging period cleaning fouling product, and processor controls cleaning device and cleans photovoltaic module at scavenging period.
According to the abovementioned embodiments of the present invention, can also in conjunction with the level of coverage of artificial inspection photovoltaic module fouling product, determine that photovoltaic module needs the time period of carrying out cleaning, thus photovoltaic module automatic cleaning system can send cleaning control signal automatically or manually, to control cleaning device cleaning photovoltaic module.
As shown in Figure 2, environment monitoring device can also comprise: assembly temperature sensor 13, is connected between processor and photovoltaic module, for obtaining the assembly temperature data of photovoltaic module; Optical sensor 14, is connected with processor, and for obtaining the photometric data of photovoltaic module working environment, wherein, ambient parameter also comprises assembly temperature data and photometric data.
In the above embodiment of the present invention, processor can comprise: the second calculator, be connected with environment monitoring device, calculate for carrying out photovoltaic module generating efficiency to assembly temperature data, photometric data and ambient temperature data the maximum temperature data determining photovoltaic module maximum generation efficiency; Second comparator, be connected with environment monitoring device and the second calculator respectively, for when the difference of assembly temperature data and maximum temperature data is greater than preset difference value, generate cleaning cooling instruction, also for when the difference of assembly temperature data and maximum temperature data is not more than preset difference value, generate and stop cooling instruction; Wherein, cleaning control signal comprises cleaning cooling instruction and stops cooling instruction.
Particularly, second calculator environmentally temperature data, assembly temperature data, photometric data and photovoltaic module generating efficiency data can carry out the calculating of photovoltaic module generating efficiency, to determine the maximum temperature data of photovoltaic module maximum generation efficiency, assembly temperature data exceed maximum temperature data to a certain degree time, send cleaning cooling instruction, when assembly temperature data to drop to lower than maximum temperature data to a certain degree, send and stop cooling instruction.
In a kind of preferred embodiment of the present invention, can by the incidence relation of the second calculator securing component temperature and time, need the time point of cooling process according to this incidence relation and maximum temperature data determination photovoltaic module, processor needs the time point carrying out lowering the temperature process to control cleaning device cleaning photovoltaic module at photovoltaic module.
In the above-described embodiments, situation about can also make an inspection tour in conjunction with personnel, in photovoltaic module automatic cleaning system, add the function that Non-follow control purging system runs, man-computer cooperation is to guarantee the duty of photovoltaic field continuous service at maximum generating watt.
According to the abovementioned embodiments of the present invention, according to the comprehensive analysis to ambient temperature data, assembly temperature data, photometric data and photovoltaic generating system, determine the temperature spot that power generation efficiency of photovoltaic power generation is the highest, when assembly temperature exceedes this temperature spot certain limit, automatically start purging system and lower the temperature.Therefore, photovoltaic module automatic cleaning system in above-described embodiment is to the cleaning of photovoltaic module, not only can remove the shelter on photovoltaic module surface, ensure generating efficiency and the life-span of photovoltaic module, can also be in good time lower the temperature to photovoltaic module, regulates photovoltaic module temperature, makes it remain on best generating efficiency temperature spot, improve the generated energy of photovoltaic field, enable the generating efficiency of photovoltaic module reach optimum state.
In the above embodiment of the present invention, cleaning device as shown in Figure 2 can also comprise: water supply installation 51, is connected with processor 30, supplies water under controlling at cleaning control signal; Spray equipment 53, is connected with water supply installation 51, the Water spray photovoltaic module provided for using water supply installation.
Particularly, processor also comprises: spray rate controller, is connected with spray equipment, for controlling the spray rate of spray equipment according to cleaning control signal.
Run after the cleaning device of this photovoltaic module automatic cleaning system sends cleaning control instruction by processor, the water flow velocity of the shower portion of cleaning device is subject to the control of the spray rate controller in processor equally.Particularly, when photovoltaic module needs cleaning, spray rate controller controls water velocity to be accelerated, effectively can remove fouling product; When photovoltaic module is lowered the temperature at needs, spray rate controller controls water velocity and slows down, and saves because improving the electric energy consumed needed for the kinetic energy of water.
State electric energy needed for the photovoltaic module automatic cleaning system in embodiment on the invention all to be provided by the electricity of photovoltaic plant own, photovoltaic electric is generated power for their own use, and makes this automatic cleaning system externally " zero power consumption ".
As shown in Figure 2, photovoltaic module automatic cleaning system can also comprise: communication manager 60, is connected between environment monitoring device and processor, for ambient parameter is forwarded to processor.Particularly, communication manager is connected with environment monitoring device by RS485 bus.
In the embodiment illustrated in figure 2, staff can also pass through operator station/main frame 70 control processor.
As can be seen from the above description, present invention achieves following technique effect:
Photovoltaic module automatic cleaning system of the present invention can according to the judgement of environmental factor being made to cleaning control signal (as the cleaning clear instruction of photovoltaic module, the cooling instruction to photovoltaic module), real-time control spray system work, photovoltaic module is cleaned or lowers the temperature, ensure the maximum photoelectric transformation efficiency of photovoltaic module, electric energy used is all from the self power generation of photovoltaic station simultaneously, external zero power consumption.
Obviously, those skilled in the art should be understood that, various calculators in above-mentioned processor of the present invention, comparator can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a photovoltaic module automatic cleaning system, is characterized in that, comprising:
Environment monitoring device, for obtaining the ambient parameter of photovoltaic module;
Processor, is connected with described environment monitoring device, for generating cleaning control signal according to described ambient parameter;
Cleaning device, is connected with described processor, under controlling at described cleaning control signal, clean described photovoltaic module.
2. photovoltaic module automatic cleaning system according to claim 1, is characterized in that, described environment monitoring device comprises:
Air velocity transducer, is connected with described processor, for obtaining the air speed data of described photovoltaic module working environment;
Wherein, described ambient parameter comprises described air speed data.
3. photovoltaic module automatic cleaning system according to claim 1 and 2, is characterized in that, described environment monitoring device also comprises:
Environment humidity sensor, is connected with described processor, and for obtaining ambient temperature data and the ambient humidity data of described photovoltaic module working environment, wherein, described ambient parameter also comprises described ambient temperature data and described ambient humidity data.
4. photovoltaic module automatic cleaning system according to claim 3, is characterized in that, described processor comprises:
First calculator, is connected with described environment monitoring device, calculates fouling product accumulated value for carrying out fouling product accumulation to described ambient parameter;
First comparator, is connected with described first calculator, for when described fouling product accumulated value is greater than preset cumulative value, generates the described cleaning control signal of cleaning fouling product.
5. photovoltaic module automatic cleaning system according to claim 3, is characterized in that, described environment monitoring device also comprises:
Assembly temperature sensor, is connected between described processor and described photovoltaic module, for obtaining the assembly temperature data of described photovoltaic module;
Optical sensor, is connected with described processor, for obtaining the photometric data of described photovoltaic module working environment,
Wherein, described ambient parameter also comprises described assembly temperature data and described photometric data.
6. photovoltaic module automatic cleaning system according to claim 5, is characterized in that, described processor comprises:
Second calculator, is connected with described environment monitoring device, calculates for carrying out photovoltaic module generating efficiency to described assembly temperature data, described photometric data and described ambient temperature data the maximum temperature data determining described photovoltaic module maximum generation efficiency;
Second comparator, be connected with described environment monitoring device and the second calculator respectively, for when the difference of described assembly temperature data and described maximum temperature data is greater than preset difference value, generate cleaning cooling instruction, also for when the difference of described assembly temperature data and described maximum temperature data is not more than described preset difference value, generate and stop cooling instruction;
Wherein, described cleaning control signal comprises described cleaning cooling instruction and described stopping cooling instruction.
7. photovoltaic module automatic cleaning system according to claim 1, is characterized in that, described cleaning device also comprises:
Water supply installation, is connected with described processor, supplies water under controlling at described cleaning control signal;
Spray equipment, is connected with described water supply installation, photovoltaic module described in the Water spray provided for using described water supply installation.
8. photovoltaic module automatic cleaning system according to claim 7, is characterized in that, described processor also comprises:
Spray rate controller, is connected with described spray equipment, for controlling the spray rate of described spray equipment according to described cleaning control signal.
9. photovoltaic module automatic cleaning system according to claim 1, is characterized in that, described photovoltaic module automatic cleaning system comprises:
Communication manager, is connected between described environment monitoring device and described processor, for described ambient parameter is forwarded to described processor.
10. photovoltaic module automatic cleaning system according to claim 9, is characterized in that, described communication manager is connected with described environment monitoring device by RS485 bus.
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| CN108268028A (en) * | 2016-12-30 | 2018-07-10 | 浙江克里蒂弗机器人科技有限公司 | The small watersheds and method of photovoltaic battery panel cleaning |
| CN108759899A (en) * | 2018-03-01 | 2018-11-06 | 上海安轩自动化科技有限公司 | Solar power station EMS |
| CN111375616B (en) * | 2018-12-30 | 2022-03-04 | 国家能源投资集团有限责任公司 | Cleaning method and device for photovoltaic building, storage medium and processor |
| CN111375616A (en) * | 2018-12-30 | 2020-07-07 | 国家能源投资集团有限责任公司 | Cleaning method and device for photovoltaic building, storage medium and processor |
| CN110907794A (en) * | 2019-12-09 | 2020-03-24 | 合肥阳光新能源科技有限公司 | Method and device for setting cleaning duration of component |
| CN110907794B (en) * | 2019-12-09 | 2022-05-24 | 阳光新能源开发股份有限公司 | Method and device for setting cleaning time of component |
| CN113255502A (en) * | 2021-05-18 | 2021-08-13 | 阳光新能源开发有限公司 | Cleaning method and related device for photovoltaic module |
| CN113953244A (en) * | 2021-10-15 | 2022-01-21 | 阳光新能源开发股份有限公司 | Photovoltaic module cleaning method and device and dust detection method |
| CN113953244B (en) * | 2021-10-15 | 2023-01-10 | 阳光新能源开发股份有限公司 | Photovoltaic module cleaning method and device and dust detection method |
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